I've never heard of these electrical problems. It doesn't mean that they don't exist but I doubt it's a common enough problem that you will likely have a problem with every unit out there. IMO the "banana boom" is mostly a marketing tool. I have operated a long time prior to the availability of them, and a long time since. Cat introduced it in the B series and Deere followed suit a few years later. I think it adds some strength to the boom (after they got the design perfected, mine was replaced with updated version under warranty) as you don't see hardly any boom failures anymore. There may be some actual leverage advantages but I can't notice them. I remember Cat claimed an advantage for reaching over obstacles (like walls). This may have some merrit but, from what I can tell, it might give you a few more inches. It may offer some advantages in visibility. If you look at an excavator boom you can see more of a need for the design (especially when you consider how the boom rams are mounted). The backhoe does not mount the boom ram in the same fasion as the excavator. IMO Deere hoes are good machines. I would stick with the S (or "super") versions.